Romnea Coulteri

The gorgeous fragrant flowers of the tree poppy make it a deserving holder of the Royal Horticultural Society's prestigious Award of Garden Merit (AGM). Blooming for months on end in summer, it is a beautiful choice for a sunny, protected spot in well-drained soil. Plants can prove tricky to get going as they resent transplanting but once established they will spread rapidly. Protect plants with a dry winter mulch and cut back to a low permanent framework each spring.